EP 2187256 A3 20100616 - Electrochromic display device using a leuco dye and a passive matrix
Title (en)
Electrochromic display device using a leuco dye and a passive matrix
Title (de)
Elektrochrome Anzeigevorrichtung mit Leuco-Farbstoff und passiver Matrix
Title (fr)
Dispositif d'affichage électrochromique comprenant un leuco-colorant et une matrice passive
Publication
Application
Priority
JP 2008290841 A 20081113
Abstract (en)
[origin: EP2187256A2] Disclosed is an electrochromic display device (100) comprising: a first substrate (10); a first electrode (20); a second substrate (30); a second electrode (40); and an electrochromic composition layer (50), wherein the device is of a passive matrix drive where the device performs a display by an energization between the electrodes, and performs a erasion of the display, wherein the first electrode comprises electrodes, the second electrode comprises a plurality of transparent display electrodes, a pixel is formed where the electrodes are in a grade separated crossing, at least a surface of the electrodes is respectively oxidized, the electrochromic composition layer (50) comprising insulative partition walls (51) and an electrochromic composition (52) including a supporting electrolyte, a polar solvent, and a leuco dye, and wherein the device displays a selected pixel by applying a voltage of a first potential difference, and applies the voltage of a second potential difference so as not to cause any energization. Adsorbents (53) adsorbing the leuco dyes at the time of energizations for the erasions between the first electrode (20) and the second electrode (40) are added to the electrochromic composition (52).
IPC 8 full level
G02F 1/1503 (2019.01); G02F 1/155 (2006.01); G02F 1/163 (2006.01)
CPC (source: EP US)
G02F 1/1503 (2018.12 - EP US); G02F 1/163 (2013.01 - EP US); G09G 3/38 (2013.01 - EP US); G02F 1/155 (2013.01 - EP US); G02F 2001/1518 (2018.12 - EP US); G09G 2300/06 (2013.01 - EP US)
Citation (search report)
[I] EP 1887416 A1 20080213 - KONICA MINOLTA HOLDINGS INC [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2187256 A2 20100519; EP 2187256 A3 20100616; JP 2010117560 A 20100527; JP 5501602 B2 20140528; US 2010134865 A1 20100603; US 7995262 B2 20110809
DOCDB simple family (application)
EP 09175730 A 20091112; JP 2008290841 A 20081113; US 61741109 A 20091112